First of all, it is an obd1 system. Your scanner will not work.
You replaced the pump, but what is the pressure? There are low pressure systems and high pressure systems on these early models and if you put in the wrong one, it wont start. It needs around 58-60 to start.
What about spark? Do you have good spark to the plugs?
I would not throw anything at this till you know what has failed. It may pay you to at least get a shop to diag it for you so you know exactly what has failed instead of expensive guesses.
Wednesday, September 21st, 2011 AT 2:05 PM